组件-Element—Checkbox（多选框）

组件-Element—Checkbox（多选框）

组件—多选框

1. 基础用法
   

<template>
  <!-- `checked` 为 true 或 false -->
  <el-checkbox v-model="checked">备选项</el-checkbox>
</template>
<script>
  export default {
    data() {
      return {
        checked: true
      };
    }
  };
</script>

2. 禁用状态
   

<template>
  <el-checkbox v-model="checked1" disabled>备选项1</el-checkbox>
  <el-checkbox v-model="checked2" disabled>备选项</el-checkbox>
</template>
<script>
  export default {
    data() {
      return {
        checked1: false,
        checked2: true
      };
    }
  };
</script>

3. 多选框组
   

<template>
  <el-checkbox-group v-model="checkList">
    <el-checkbox label="复选框 A"></el-checkbox>
    <el-checkbox label="复选框 B"></el-checkbox>
    <el-checkbox label="复选框 C"></el-checkbox>
    <el-checkbox label="禁用" disabled></el-checkbox>
    <el-checkbox label="选中且禁用" disabled></el-checkbox>
  </el-checkbox-group>
</template>

<script>
  export default {
    data () {
      return {
        checkList: ['选中且禁用','复选框 A']
      };
    }
  };
</script>

4. indeterminate 状态
   

<template>
  <el-checkbox :indeterminate="isIndeterminate" v-model="checkAll" @change="handleCheckAllChange">全选</el-checkbox>
  <div style="margin: 15px 0;"></div>
  <el-checkbox-group v-model="checkedCities" @change="handleCheckedCitiesChange">
    <el-checkbox v-for="city in cities" :label="city" :key="city">{{city}}</el-checkbox>
  </el-checkbox-group>
</template>
<script>
  const cityOptions = ['上海', '北京', '广州', '深圳'];
  export default {
    data() {
      return {
        checkAll: false,
        checkedCities: ['上海', '北京'],
        cities: cityOptions,
        isIndeterminate: true
      };
    },
    methods: {
      handleCheckAllChange(val) {
        this.checkedCities = val ? cityOptions : [];
        this.isIndeterminate = false;
      },
      handleCheckedCitiesChange(value) {
        let checkedCount = value.length;
        this.checkAll = checkedCount === this.cities.length;
        this.isIndeterminate = checkedCount > 0 && checkedCount < this.cities.length;
      }
    }
  };
</script>

5. 可选项目数量的限制
   

<template>
  <el-checkbox-group 
    v-model="checkedCities"
    :min="1"
    :max="2">
    <el-checkbox v-for="city in cities" :label="city" :key="city">{{city}}</el-checkbox>
  </el-checkbox-group>
</template>
<script>
  const cityOptions = ['上海', '北京', '广州', '深圳'];
  export default {
    data() {
      return {
        checkedCities: ['上海', '北京'],
        cities: cityOptions
      };
    }
  };
</script>

6. 按钮样式
   

<template>
  <div>
    <el-checkbox-group v-model="checkboxGroup1">
      <el-checkbox-button v-for="city in cities" :label="city" :key="city">{{city}}</el-checkbox-button>
    </el-checkbox-group>
  </div>
  <div style="margin-top: 20px">
    <el-checkbox-group v-model="checkboxGroup2" size="medium">
      <el-checkbox-button v-for="city in cities" :label="city" :key="city">{{city}}</el-checkbox-button>
    </el-checkbox-group>
  </div>
  <div style="margin-top: 20px">
    <el-checkbox-group v-model="checkboxGroup3" size="small">
      <el-checkbox-button v-for="city in cities" :label="city" :disabled="city === '北京'" :key="city">{{city}}</el-checkbox-button>
    </el-checkbox-group>
  </div>
  <div style="margin-top: 20px">
    <el-checkbox-group v-model="checkboxGroup4" size="mini" disabled>
      <el-checkbox-button v-for="city in cities" :label="city" :key="city">{{city}}</el-checkbox-button>
    </el-checkbox-group>
  </div>
</template>
<script>
  const cityOptions = ['上海', '北京', '广州', '深圳'];
  export default {
    data () {
      return {
        checkboxGroup1: ['上海'],
        checkboxGroup2: ['上海'],
        checkboxGroup3: ['上海'],
        checkboxGroup4: ['上海'],
        cities: cityOptions
      };
    }
  }
</script>

7. 带有边框
   

<template>
  <div>
    <el-checkbox v-model="checked1" label="备选项1" border></el-checkbox>
    <el-checkbox v-model="checked2" label="备选项2" border></el-checkbox>
  </div>
  <div style="margin-top: 20px">
    <el-checkbox v-model="checked3" label="备选项1" border size="medium"></el-checkbox>
    <el-checkbox v-model="checked4" label="备选项2" border size="medium"></el-checkbox>
  </div>
  <div style="margin-top: 20px">
    <el-checkbox-group v-model="checkboxGroup1" size="small">
      <el-checkbox label="备选项1" border></el-checkbox>
      <el-checkbox label="备选项2" border disabled></el-checkbox>
    </el-checkbox-group>
  </div>
  <div style="margin-top: 20px">
    <el-checkbox-group v-model="checkboxGroup2" size="mini" disabled>
      <el-checkbox label="备选项1" border></el-checkbox>
      <el-checkbox label="备选项2" border></el-checkbox>
    </el-checkbox-group>
  </div>
</template>

<script>
  export default {
    data () {
      return {
        checked1: true,
        checked2: false,
        checked3: false,
        checked4: true,
        checkboxGroup1: [],
        checkboxGroup2: []
      };
    }
  }
</script>